- From: Pat Hayes <phayes@ihmc.us>
- Date: Thu, 4 Jul 2013 22:24:29 -0500
- To: Aidan Hogan <aidan.hogan@deri.org>
- Cc: public-lod@w3.org
On Jul 4, 2013, at 1:12 PM, Aidan Hogan wrote: > On 04/07/2013 17:45, Kingsley Idehen wrote: >> On 7/4/13 11:49 AM, Olivier Berger wrote: > <snip to Olivier's question:> >>> For instance, I'd like to match as "identical" two doap:Projects >>> resources >>> which have "same" doap:homepage if I can match >>> http://project1/example.com/home/ and https://project1/example.com/home/ >>> > <snip to Kingsley's response:> >> Conclusion: just leverage RDF semantics, forget about regexing anything, >> and you have a first-class demonstration of what RDF actually adds to >> Linked Data :-) > > Kingsley, I think you misread the question. > > doap:homepage a owl:InverseFunctionalProperty . > :SomeThing doap:homepage <http://project1/example.com/home/> . > :AnotherThing doap:homepage <https://project1/example.com/home/> . > > will not infer: > > :SomeThing owl:sameAs :AnotherThing . > > The two values for doap:homepage are different. Well, you could add http://project1/example.com/home/ owl:sameAs https://project1/example.com/home/ . which might be true in a sense and is not likely to confuse any HTTP engines (unless they start doing OWL reasoning, but I'm not holding my breath.) Pat > The question is how to normalise/canonicalise/sameAs the two homepage URIs (which are identical up to http/https/trailing slash, etc.), as a lead up to making that inference. > > @Olivier, I'd propose to put a script between your sources and your store that applies a manual normalisation of the URIs. Caveat emptor: the URIs *are* different so although normalisation might seem like a great idea in some cases, it could also easily conflate things that are actually different. Be particularly wary of the trailing slash case. > > Cheers, > Aidan > > > ------------------------------------------------------------ IHMC (850)434 8903 or (650)494 3973 40 South Alcaniz St. (850)202 4416 office Pensacola (850)202 4440 fax FL 32502 (850)291 0667 mobile phayesAT-SIGNihmc.us http://www.ihmc.us/users/phayes
Received on Friday, 5 July 2013 03:25:04 UTC